Thread: Ubuntu Server 10.04 will not boot after latest upate

hello

have been trying server reboot no luck. had installed multipath-tools-boot while , able reboot no issues. since latest kernel upgrade keeps failing with:

gave waiting root device. common problems:

-boot args (cat /proc/cmdline)
-check rootdelay= (did system wait long enough?)
-check root= (did system wait right device?)
-missing modules (cat /proc/modules; ls /dev)
alert! /dev/mapper/verde--vdi-root not exist. dropping shell!

cat /proc/cdmline results in

boot_image=/vmlinuz-2.6.32.41-server root=/dev/mapper/verde--vdi-root ro quiet

i looked in /dev/mapper under initramfs shell , found following:

control system system-part1 system-part2 system-part5

other boot info (the results of boot info script are):

boot info script 0.61 [1 april 2012]


============================= boot info summary: ===============================

=> grub2 ("v1.97-1.98") installed in mbr of /dev/sdb , looks @ sector
1 of same hard drive core.img. core.img @ location ,
looks in partition 1 /grub.
=> no known boot loader installed in mbr of /dev/sdc.

sdb1: __________________________________________________ ________________________

file system: ext2
boot sector type: -
boot sector info:
operating system:
boot files: /grub/grub.cfg

sdb2: __________________________________________________ ________________________

file system: extended partition
boot sector type: -
boot sector info:

sdb5: __________________________________________________ ________________________

file system: lvm2_member
boot sector type: -
boot sector info:

============================ drive/partition info: =============================

drive: sdb __________________________________________________ ___________________

disk /dev/sdb: 214.7 gb, 214748364800 bytes
255 heads, 63 sectors/track, 26108 cylinders, total 419430400 sectors
units = sectors of 1 * 512 = 512 bytes
sector size (logical/physical): 512 bytes / 512 bytes

partition boot start sector end sector # of sectors id system

/dev/sdb1 * 2,048 499,711 497,664 83 linux
/dev/sdb2 501,758 419,428,351 418,926,594 5 extended
/dev/sdb5 501,760 419,428,351 418,926,592 8e linux lvm


drive: sdc __________________________________________________ ___________________

partition boot start sector end sector # of sectors id system

invalid mbr signature found.


"blkid" output: __________________________________________________ ______________

device uuid type label

/dev/mapper/verde--vdi-root fbb859c4-bdbb-4dd7-a0b2-00bfa5a814a9 ext4
/dev/mapper/verde--vdi-swap_1 258f6c07-445f-44fd-89ff-63c58dbd933a swap
/dev/sdb1 d369d765-52c0-417e-b317-e6c55d5933c6 ext2
/dev/sdb5 clyfhv-dlaq-c5v1-u16m-rv8y-dd50-mdqjbv lvm2_member

========================= "ls -r /dev/mapper/" output: =========================

/dev/mapper:
verde--vdi-root
verde--vdi-swap_1
control

================================ mount points: =================================

device mount_point type options

/dev/mapper/verde--vdi-root / ext4 (rw,errors=remount-ro)
/dev/sdb1 /boot ext2 (rw)
/dev/sdb1 /boot ext2 (rw)
/dev/sdb1 /boot ext2 (rw)
/dev/sdb1 /root ext2 (rw)
/dev/sdb1 /root ext2 (rw)


============================= sdb1/grub/grub.cfg: ==============================

--------------------------------------------------------------------------------
#
# not edit file
#
# automatically generated /usr/sbin/grub-mkconfig using templates
# /etc/grub.d , settings /etc/default/grub
#

### begin /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
load_env
fi
set default="0"
if [ ${prev_saved_entry} ]; then
set saved_entry=${prev_saved_entry}
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi

function savedefault {
if [ -z ${boot_once} ]; then
saved_entry=${chosen}
save_env saved_entry
fi
}

function recordfail {
set recordfail=1
if [ -n ${have_grubenv} ]; if [ -z ${boot_once} ]; save_env recordfail; fi; fi
}
if [ ${recordfail} = 1 ]; then
set timeout=-1
else
set timeout=10
fi
### end /etc/grub.d/00_header ###

### begin /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
### end /etc/grub.d/05_debian_theme ###

### begin /etc/grub.d/10_linux ###
### end /etc/grub.d/10_linux ###

### begin /etc/grub.d/20_memtest86+ ###
### end /etc/grub.d/20_memtest86+ ###

### begin /etc/grub.d/30_os-prober ###
if [ ${timeout} != -1 ]; then
if sleep --interruptible # ; then
set timeout=0
fi
fi
### end /etc/grub.d/30_os-prober ###

### begin /etc/grub.d/40_custom ###
# file provides easy way add custom menu entries. type the
# menu entries want add after comment. careful not change
# 'exec tail' line above.
### end /etc/grub.d/40_custom ###
--------------------------------------------------------------------------------

=================== sdb1: location of files loaded grub: ====================

gib - gb file fragment(s)

104.207649231 = 111.892111360 grub/grub.cfg 1
11.328548431 = 12.163936256 initrd.img-2.6.32-41-server 2

======================== unknown mbrs/boot sectors/etc: ========================

unknown mbr on /dev/sdc



========= devices don't seem have corresponding hard drive: =========

sda

=============================== stderr messages: ===============================

hexdump: /dev/sdc: input/output error
hexdump: /dev/sdc: input/output error
warning: ignoring duplicate config node: preferred_names (seeking preferred_names)

can me server , running again?

thanks!

do have vmlinuz kernel file in boot directory?
looks of grub.cfg file seems required files boot not present.

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